基于Vague集的机械设计方案多目标模糊决策方法

在现有多目标模糊决策方法的基础上，提出了一种改进的基于Vague集的多目标模糊决策算法及其在机械设计方案决策中的应用方法。通过建立一个函数来评价每个方案满足决策者需要的适合度，其中方案的特征由Vague集表示，改进的评价函数算法包含了肯定隶属度、否定隶属度和不确定度（踌躇度）等因素，并且算法中所定义的函数含义更明确。实例阐明了本文基于Vague集的多目标模糊决策方法的合理性，机械设计方案多目标模糊决策取得了较为满意的结果。

Multi-criteria fuzzy decision-making method for design schemes based on vague set

This paper proposes an improved multi - criteria fuzzy decision - making algorithm based on vague set on the basis of the existing multi - criteria fuzzy decision - making methods. The expected suitability of decision maker to each scheme is e-valuated by means of the propoeed function and with scheme characteristics expressed by vague set. The improved algorithm includes the affirmation membership, negative membership and uncertainty membership degree (hesitancy) .Signification of proposed function is more definite than that of others. The practical example has proved its reasonability.